Finding the Fourth Proportional to 42,590,142.29, 63,859,680.18 and 19,532,196.70

Step by Step Solution

1. Step 1: Write the proportion equation
   42,590,142.29 : 63,859,680.18 = 19,532,196.70 : x
2. Step 2: Convert to fraction form
   42,590,142.29/63,859,680.18 = 19,532,196.70/x
3. Step 3: Cross multiply
   42,590,142.29x = 63,859,680.18 × 19,532,196.70
4. Step 4: Simplify right side
   42,590,142.29x = 1,247,319,834,315,202.25
5. Step 5: Solve for x
   x = 1,247,319,834,315,202.25/42,590,142.29
6. Step 6: Final answer
   x = 29,286,585.28