Finding the Fourth Proportional to 56,970.20, 78,612.10 and 34,308.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,970.20 : 78,612.10 = 34,308.83 : x
2. Step 2: Convert to fraction form
   56,970.20/78,612.10 = 34,308.83/x
3. Step 3: Cross multiply
   56,970.20x = 78,612.10 × 34,308.83
4. Step 4: Simplify right side
   56,970.20x = 2,697,088,696.01
5. Step 5: Solve for x
   x = 2,697,088,696.01/56,970.20
6. Step 6: Final answer
   x = 47,342.10