Finding the Fourth Proportional to 1,054,948,068.71, 1,582,567,619.50 and 612,499,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054,948,068.71 : 1,582,567,619.50 = 612,499,118.50 : x
2. Step 2: Convert to fraction form
   1,054,948,068.71/1,582,567,619.50 = 612,499,118.50/x
3. Step 3: Cross multiply
   1,054,948,068.71x = 1,582,567,619.50 × 612,499,118.50
4. Step 4: Simplify right side
   1,054,948,068.71x = 969,321,271,900,721,408
5. Step 5: Solve for x
   x = 969,321,271,900,721,408/1,054,948,068.71
6. Step 6: Final answer
   x = 918,833,164.06