Finding the Fourth Proportional to 137,108,672, 189,210,326.64 and 74,384,766.72

Step by Step Solution

1. Step 1: Write the proportion equation
   137,108,672 : 189,210,326.64 = 74,384,766.72 : x
2. Step 2: Convert to fraction form
   137,108,672/189,210,326.64 = 74,384,766.72/x
3. Step 3: Cross multiply
   137,108,672x = 189,210,326.64 × 74,384,766.72
4. Step 4: Simplify right side
   137,108,672x = 14,074,366,008,131,400
5. Step 5: Solve for x
   x = 14,074,366,008,131,400/137,108,672
6. Step 6: Final answer
   x = 102,651,172.99