Finding the Fourth Proportional to 42,047,071.40, 63,058,797.30 and 13,302,018.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,047,071.40 : 63,058,797.30 = 13,302,018.20 : x
2. Step 2: Convert to fraction form
   42,047,071.40/63,058,797.30 = 13,302,018.20/x
3. Step 3: Cross multiply
   42,047,071.40x = 63,058,797.30 × 13,302,018.20
4. Step 4: Simplify right side
   42,047,071.40x = 838,809,269,354,710.75
5. Step 5: Solve for x
   x = 838,809,269,354,710.75/42,047,071.40
6. Step 6: Final answer
   x = 19,949,291.15