Finding the Fourth Proportional to 56,770,978.36, 78,343,981.63 and 30,665,496.33

Step by Step Solution

1. Step 1: Write the proportion equation
   56,770,978.36 : 78,343,981.63 = 30,665,496.33 : x
2. Step 2: Convert to fraction form
   56,770,978.36/78,343,981.63 = 30,665,496.33/x
3. Step 3: Cross multiply
   56,770,978.36x = 78,343,981.63 × 30,665,496.33
4. Step 4: Simplify right side
   56,770,978.36x = 2,402,457,081,194,885
5. Step 5: Solve for x
   x = 2,402,457,081,194,885/56,770,978.36
6. Step 6: Final answer
   x = 42,318,401.95