Finding the Fourth Proportional to 99,683.13, 137,561.00 and 54,361.47

Step by Step Solution

1. Step 1: Write the proportion equation
   99,683.13 : 137,561.00 = 54,361.47 : x
2. Step 2: Convert to fraction form
   99,683.13/137,561.00 = 54,361.47/x
3. Step 3: Cross multiply
   99,683.13x = 137,561.00 × 54,361.47
4. Step 4: Simplify right side
   99,683.13x = 7,478,017,902.86
5. Step 5: Solve for x
   x = 7,478,017,902.86/99,683.13
6. Step 6: Final answer
   x = 75,017.89