Finding the Fourth Proportional to 52,124.07, 78,294.42 and 42,140.10

Step by Step Solution

1. Step 1: Write the proportion equation
   52,124.07 : 78,294.42 = 42,140.10 : x
2. Step 2: Convert to fraction form
   52,124.07/78,294.42 = 42,140.10/x
3. Step 3: Cross multiply
   52,124.07x = 78,294.42 × 42,140.10
4. Step 4: Simplify right side
   52,124.07x = 3,299,334,688.24
5. Step 5: Solve for x
   x = 3,299,334,688.24/52,124.07
6. Step 6: Final answer
   x = 63,297.72