Finding the Fourth Proportional to 35,921,288.34, 53,903,193.39 and 13,218,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   35,921,288.34 : 53,903,193.39 = 13,218,128.82 : x
2. Step 2: Convert to fraction form
   35,921,288.34/53,903,193.39 = 13,218,128.82/x
3. Step 3: Cross multiply
   35,921,288.34x = 53,903,193.39 × 13,218,128.82
4. Step 4: Simplify right side
   35,921,288.34x = 712,499,354,038,392.50
5. Step 5: Solve for x
   x = 712,499,354,038,392.50/35,921,288.34
6. Step 6: Final answer
   x = 19,835,016.70