Finding the Fourth Proportional to 12,898,464.72, 19,347,059.40 and 4,810,810.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,898,464.72 : 19,347,059.40 = 4,810,810.32 : x
2. Step 2: Convert to fraction form
   12,898,464.72/19,347,059.40 = 4,810,810.32/x
3. Step 3: Cross multiply
   12,898,464.72x = 19,347,059.40 × 4,810,810.32
4. Step 4: Simplify right side
   12,898,464.72x = 93,075,033,023,173
5. Step 5: Solve for x
   x = 93,075,033,023,173/12,898,464.72
6. Step 6: Final answer
   x = 7,215,977.64