Finding the Fourth Proportional to 12,987,828.63, 19,475,779.59 and 3,763,704.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,987,828.63 : 19,475,779.59 = 3,763,704.15 : x
2. Step 2: Convert to fraction form
   12,987,828.63/19,475,779.59 = 3,763,704.15/x
3. Step 3: Cross multiply
   12,987,828.63x = 19,475,779.59 × 3,763,704.15
4. Step 4: Simplify right side
   12,987,828.63x = 73,301,072,467,368.30
5. Step 5: Solve for x
   x = 73,301,072,467,368.30/12,987,828.63
6. Step 6: Final answer
   x = 5,643,828.12