Finding the Fourth Proportional to 97,061.94, 145,592.94 and 55,479.78

Step by Step Solution

1. Step 1: Write the proportion equation
   97,061.94 : 145,592.94 = 55,479.78 : x
2. Step 2: Convert to fraction form
   97,061.94/145,592.94 = 55,479.78/x
3. Step 3: Cross multiply
   97,061.94x = 145,592.94 × 55,479.78
4. Step 4: Simplify right side
   97,061.94x = 8,077,464,280.75
5. Step 5: Solve for x
   x = 8,077,464,280.75/97,061.94
6. Step 6: Final answer
   x = 83,219.69