Finding the Fourth Proportional to 56,754,900.79, 78,321,762.37 and 30,649,416.31

Step by Step Solution

1. Step 1: Write the proportion equation
   56,754,900.79 : 78,321,762.37 = 30,649,416.31 : x
2. Step 2: Convert to fraction form
   56,754,900.79/78,321,762.37 = 30,649,416.31/x
3. Step 3: Cross multiply
   56,754,900.79x = 78,321,762.37 × 30,649,416.31
4. Step 4: Simplify right side
   56,754,900.79x = 2,400,516,301,137,473
5. Step 5: Solve for x
   x = 2,400,516,301,137,473/56,754,900.79
6. Step 6: Final answer
   x = 42,296,194.12