Finding the Fourth Proportional to 57,003,388.18, 78,664,844.06 and 30,898,009.81

Step by Step Solution

1. Step 1: Write the proportion equation
   57,003,388.18 : 78,664,844.06 = 30,898,009.81 : x
2. Step 2: Convert to fraction form
   57,003,388.18/78,664,844.06 = 30,898,009.81/x
3. Step 3: Cross multiply
   57,003,388.18x = 78,664,844.06 × 30,898,009.81
4. Step 4: Simplify right side
   57,003,388.18x = 2,430,587,123,701,417.50
5. Step 5: Solve for x
   x = 2,430,587,123,701,417.50/57,003,388.18
6. Step 6: Final answer
   x = 42,639,344.80