Finding the Fourth Proportional to 1,054,948,073.60, 1,582,567,626.81 and 612,499,123.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054,948,073.60 : 1,582,567,626.81 = 612,499,123.37 : x
2. Step 2: Convert to fraction form
   1,054,948,073.60/1,582,567,626.81 = 612,499,123.37/x
3. Step 3: Cross multiply
   1,054,948,073.60x = 1,582,567,626.81 × 612,499,123.37
4. Step 4: Simplify right side
   1,054,948,073.60x = 969,321,284,086,953,472
5. Step 5: Solve for x
   x = 969,321,284,086,953,472/1,054,948,073.60
6. Step 6: Final answer
   x = 918,833,171.37