Finding the Fourth Proportional to 42,059,128.80, 63,094,598.10 and 13,302,265.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,059,128.80 : 63,094,598.10 = 13,302,265.80 : x
2. Step 2: Convert to fraction form
   42,059,128.80/63,094,598.10 = 13,302,265.80/x
3. Step 3: Cross multiply
   42,059,128.80x = 63,094,598.10 × 13,302,265.80
4. Step 4: Simplify right side
   42,059,128.80x = 839,301,114,470,375
5. Step 5: Solve for x
   x = 839,301,114,470,375/42,059,128.80
6. Step 6: Final answer
   x = 19,955,266.27