Finding the Fourth Proportional to 99,527.73, 137,397.83 and 65,558.15

Step by Step Solution

1. Step 1: Write the proportion equation
   99,527.73 : 137,397.83 = 65,558.15 : x
2. Step 2: Convert to fraction form
   99,527.73/137,397.83 = 65,558.15/x
3. Step 3: Cross multiply
   99,527.73x = 137,397.83 × 65,558.15
4. Step 4: Simplify right side
   99,527.73x = 9,007,547,548.81
5. Step 5: Solve for x
   x = 9,007,547,548.81/99,527.73
6. Step 6: Final answer
   x = 90,502.89