Finding the Fourth Proportional to 56,770,978.56, 78,343,981.90 and 30,665,496.54

Step by Step Solution

1. Step 1: Write the proportion equation
   56,770,978.56 : 78,343,981.90 = 30,665,496.54 : x
2. Step 2: Convert to fraction form
   56,770,978.56/78,343,981.90 = 30,665,496.54/x
3. Step 3: Cross multiply
   56,770,978.56x = 78,343,981.90 × 30,665,496.54
4. Step 4: Simplify right side
   56,770,978.56x = 2,402,457,105,884,272.50
5. Step 5: Solve for x
   x = 2,402,457,105,884,272.50/56,770,978.56
6. Step 6: Final answer
   x = 42,318,402.23