Finding the Fourth Proportional to 51,700.54, 77,404.74 and 42,156.28

Step by Step Solution

1. Step 1: Write the proportion equation
   51,700.54 : 77,404.74 = 42,156.28 : x
2. Step 2: Convert to fraction form
   51,700.54/77,404.74 = 42,156.28/x
3. Step 3: Cross multiply
   51,700.54x = 77,404.74 × 42,156.28
4. Step 4: Simplify right side
   51,700.54x = 3,263,095,892.77
5. Step 5: Solve for x
   x = 3,263,095,892.77/51,700.54
6. Step 6: Final answer
   x = 63,115.32