Finding the Fourth Proportional to 42,178,106.10, 63,244,399.71 and 19,136,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,178,106.10 : 63,244,399.71 = 19,136,464.50 : x
2. Step 2: Convert to fraction form
   42,178,106.10/63,244,399.71 = 19,136,464.50/x
3. Step 3: Cross multiply
   42,178,106.10x = 63,244,399.71 × 19,136,464.50
4. Step 4: Simplify right side
   42,178,106.10x = 1,210,274,209,874,225.25
5. Step 5: Solve for x
   x = 1,210,274,209,874,225.25/42,178,106.10
6. Step 6: Final answer
   x = 28,694,370.65