Finding the Fourth Proportional to 38,308,298.76, 52,866,568.73 and 20,905,764.91

Step by Step Solution

1. Step 1: Write the proportion equation
   38,308,298.76 : 52,866,568.73 = 20,905,764.91 : x
2. Step 2: Convert to fraction form
   38,308,298.76/52,866,568.73 = 20,905,764.91/x
3. Step 3: Cross multiply
   38,308,298.76x = 52,866,568.73 × 20,905,764.91
4. Step 4: Simplify right side
   38,308,298.76x = 1,105,216,057,098,875.75
5. Step 5: Solve for x
   x = 1,105,216,057,098,875.75/38,308,298.76
6. Step 6: Final answer
   x = 28,850,564.84