Finding the Fourth Proportional to 77,610.18, 107,017.29 and 52,415.94

Step by Step Solution

1. Step 1: Write the proportion equation
   77,610.18 : 107,017.29 = 52,415.94 : x
2. Step 2: Convert to fraction form
   77,610.18/107,017.29 = 52,415.94/x
3. Step 3: Cross multiply
   77,610.18x = 107,017.29 × 52,415.94
4. Step 4: Simplify right side
   77,610.18x = 5,609,411,851.60
5. Step 5: Solve for x
   x = 5,609,411,851.60/77,610.18
6. Step 6: Final answer
   x = 72,276.75