Finding the Fourth Proportional to 19,978,976.40, 29,956,328.88 and 7,833,889.14

Step by Step Solution

1. Step 1: Write the proportion equation
   19,978,976.40 : 29,956,328.88 = 7,833,889.14 : x
2. Step 2: Convert to fraction form
   19,978,976.40/29,956,328.88 = 7,833,889.14/x
3. Step 3: Cross multiply
   19,978,976.40x = 29,956,328.88 × 7,833,889.14
4. Step 4: Simplify right side
   19,978,976.40x = 234,674,559,487,300.34
5. Step 5: Solve for x
   x = 234,674,559,487,300.34/19,978,976.40
6. Step 6: Final answer
   x = 11,746,075.21