Finding the Fourth Proportional to 97,061.27, 133,944.27 and 54,619.80

Step by Step Solution

1. Step 1: Write the proportion equation
   97,061.27 : 133,944.27 = 54,619.80 : x
2. Step 2: Convert to fraction form
   97,061.27/133,944.27 = 54,619.80/x
3. Step 3: Cross multiply
   97,061.27x = 133,944.27 × 54,619.80
4. Step 4: Simplify right side
   97,061.27x = 7,316,009,238.55
5. Step 5: Solve for x
   x = 7,316,009,238.55/97,061.27
6. Step 6: Final answer
   x = 75,375.17