Finding the Fourth Proportional to 106,166,064.72, 146,554,323.12 and 71,378,920.20

Step by Step Solution

1. Step 1: Write the proportion equation
   106,166,064.72 : 146,554,323.12 = 71,378,920.20 : x
2. Step 2: Convert to fraction form
   106,166,064.72/146,554,323.12 = 71,378,920.20/x
3. Step 3: Cross multiply
   106,166,064.72x = 146,554,323.12 × 71,378,920.20
4. Step 4: Simplify right side
   106,166,064.72x = 10,460,889,334,947,496
5. Step 5: Solve for x
   x = 10,460,889,334,947,496/106,166,064.72
6. Step 6: Final answer
   x = 98,533,268.26