Finding the Fourth Proportional to 52,428.74, 78,587.72 and 37,629.64

Step by Step Solution

1. Step 1: Write the proportion equation
   52,428.74 : 78,587.72 = 37,629.64 : x
2. Step 2: Convert to fraction form
   52,428.74/78,587.72 = 37,629.64/x
3. Step 3: Cross multiply
   52,428.74x = 78,587.72 × 37,629.64
4. Step 4: Simplify right side
   52,428.74x = 2,957,227,612.02
5. Step 5: Solve for x
   x = 2,957,227,612.02/52,428.74
6. Step 6: Final answer
   x = 56,404.70