Finding the Fourth Proportional to 99,598.98, 137,442.59 and 54,275.99

Step by Step Solution

1. Step 1: Write the proportion equation
   99,598.98 : 137,442.59 = 54,275.99 : x
2. Step 2: Convert to fraction form
   99,598.98/137,442.59 = 54,275.99/x
3. Step 3: Cross multiply
   99,598.98x = 137,442.59 × 54,275.99
4. Step 4: Simplify right side
   99,598.98x = 7,459,832,775.42
5. Step 5: Solve for x
   x = 7,459,832,775.42/99,598.98
6. Step 6: Final answer
   x = 74,898.69