Finding the Fourth Proportional to 42,725,784.78, 64,098,758.43 and 13,971,808.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,725,784.78 : 64,098,758.43 = 13,971,808.62 : x
2. Step 2: Convert to fraction form
   42,725,784.78/64,098,758.43 = 13,971,808.62/x
3. Step 3: Cross multiply
   42,725,784.78x = 64,098,758.43 × 13,971,808.62
4. Step 4: Simplify right side
   42,725,784.78x = 895,575,585,563,571.62
5. Step 5: Solve for x
   x = 895,575,585,563,571.62/42,725,784.78
6. Step 6: Final answer
   x = 20,961,009.61